Jan. 7 – The Big Bang and Space Exploration

Today was an inclement weather day.  For those of you who did not make it to class, please read sections 9.7 and 10.1

Learning Goals:

• Understand the theory and evidence behind the Big Bang.
• Understand Canadian contributions to space exploration.

Success Criteria:

• You can explain the theory of the Big Bang.
• You can describe some Canadian contributions to space exploration.

Handouts

• Theory of the Big Bang
• Theory of the Big Bang (completed) 
• Space Exploration
• Space Exploration (completed)

I've included the completed version of the handouts for people who were not in class.

After Edwin Hubble discovered there were galaxies beyond the Milky Way, he found evidence that they were all moving away from us from looking at their redshift.  

If we were to extrapolate into the past, it would mean that at some point, all the galaxies were at one place, condensed together into a dense, hot state.  This state is what we refer to as the Big Bang.  This is the earliest point in history that we can know anything about and we refer to it as the beginning of our universe.

Next we looked at some tools in space exploration and how Canada has made some contributions.

Here's a video of Chris Hadfield controlling the Canadarm2.

Candarm2 and DEXTRE have been honoured on the new 5 dollar bills.

Refer to the handouts for more details.

Homework: Read the sections in your text book, section 9.7 and section 10.1.

Remember the Quest is on Friday.